I just received this marker. I have yet to shoot it but here is my first impression. The quality of workmanship is first rate. Cosmetics are perfect and all parts mate together flawlessly. Ease of maint. is great because it disassembles quickly and all the internal O-rings are the same size, which happens to be tank O-rings. The low pressure chamber is huge, the expansion chamber is real and the tank adapter is an actual regulator.
The barrell avertised with the marker ( xeon x barrell 14" ) was substituted with the Xeon 12" barrell. I was told that the 14" barrell was not up to their highest quality expectaions and that the 12" worked better. A 13" barrell is in the works. The pressure gauge was absent on my marker, but it is supposed to be included on future production runs. I gues it is just one less thing to get broken anyway.
Were all my expectations met? YES. Even with the different barrell and the lack of the pressure gauge, I would not hesitate to make this purchase again. The only marker I can compare it to is my wife's Spyder TL plus. Seeing that it has yet to be shot, any comparison would not be fair. I guess my wife made the comparison for me when she tried to swipe it when I wasn't looking. I'm sure the wild anodizing didn't hurt her choice. I will try it out over the weekend and let you know how it performs. For now i'll give it a 10 on faith, subject to further review later.